Qualcomm Incorporated (QCOM) Message Board

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Technology Stocks : Qualcomm Incorporated (QCOM)

QCOM 173.88

-0.7%

3:37 PM EST

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To: Jon Koplik who wrote (23634)	3/2/1999 11:52:00 AM
From: engineer	Read Replies (1) of 152472

Yes, it would draw them down. Reading the rating on the battery...it should be like 700MAhr. this means that the battery can deliver .7 amps for one hour. Now the LED will draw about 16 mA. so divide the battery rating by the LED power and you get the idea of the time. If it were 700/16 then you get 43 hours. divide that by 17 hours and you get 2.5 days. since you use 3 batteries, you may get 3 times that, or about 10 days. This is assuming that all the pwoer drawn is from the LED. If you also had 16 mA drawn from the rest of the electronics, then you would be down to about 5 days. Buy an AC adapater.... Also some electronics draws alot more current when you run it at a lower voltage, so if you buy something other than alkaline and the cell voltage is not 1.5 volts, but 1.2 volts it will cause them to wear out faster.

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